I have two codes p0500 and p1135 the car loses power on hills which one causes it

Question

the engine is good only loses power on hills

Answer 1

P0500 Vehicle speed sensor malfunction

P1135 A / F (Air Flow) sensor circuit malfunction Bank 1 Sensor 1

There are 2 speed sensor located on this vehicle the rear speed sensor and the front speed sensor P0500 is the speed sensor that has coded. P1135 is for the A / F bank 1 sensor heater circuit which is used for proper air to fuel ratio.Just having the CK ENG LT on will affect the performance of the engine. When the CK ENG LT comes on certain values of the engine management are subsituted by the ECM.